powermate wiring diagram

Status
Not open for further replies.
S

stew

Senior Member
Location
federal way,washington
This may be a shot in the dark but does anyone have an internal wiring diagram of a powermate generator 5000 watts . This is an older style unit(looks new) that has either one or 2 120 volt outlets and only one 30 amp 240 only outlet. in other words a 3 wire 240 outlet. need to know how this unit was wired as a factory unit originally. I found that this unit had only 2 wires to the 240 volt outlet even though the outlet of course was a 3 prong twist lock. there was no wire to the grounding screw. I would have thought that at least the 240 volt outlet would have a ground wire. I have been told that most of thes 3 wire units had the ground a neutral tied together and then brought out to the ground screw. Just curious.
 
Remebered i had on an old bookshelf my old lincoln welder diagram book. Lincoln manufactured a line of machines called the weldanpower. ran in my mind that some of them had 230 volt outlets as well as 120 v. Thier were about 8 different models all with the same 3 wire 230 volt setup.After reviewing the diagrams all have the neutral and ground bonded at some point and brought out to the grounding lug of the 3 wire outlet. not much different than what used to be done with the line side of dryers. must have been a common practice before 4 wire became the norm I guess. The powermate generator i observed must have had the gound/neutral removed for some reason unknown to me.Seems to me if Lincoln made machines with ground/neutral bonded to ground leads me to the conclusion that generators of that ilk would all be that way. Havent been able to contact the powermate people to confirm this however.
 
Last edited:
Stew, as a 3-prong receptacle, the third terminal must have been jumpered to the chassis. That is your neutral; what you're "missing" is a separate EGC.
 
larry in this case the terminal had no wire of any kind connecting anywhere. thus no neutral. in any case unless the center tap of the winding, which must have been connected to the neutral side of the 120 volt outlet, was grounded to the chassis and then brought out to the ground lug of the outlet there would of course be no ground or neutral of any kind at the outlet.
 
stew said:
larry in this case the terminal had no wire of any kind connecting anywhere. thus no neutral. in any case unless the center tap of the winding, which must have been connected to the neutral side of the 120 volt outlet, was grounded to the chassis and then brought out to the ground lug of the outlet there would of course be no ground or neutral of any kind at the outlet.
Click to expand...
Look at the receptacle again. I bet there's a rivet or other conductive part connecting the third hole to the receptacle mounting strap.
 
stew said:
as i have said there is no connection rivet or wire to the chassis ground.
Click to expand...


Why are you assuming this receptacle is even supposed to supply a neutral?

If it has only three terminals and has 240 across two of them it is not a 120/240 receptacle it is a straight 240 receptacle.
 
Status
Not open for further replies.
Top